What is the Meaning of Slew Rate of NI SMU

Updated Mar 20, 2024

Reported In

Hardware

  • Power Supply
  • PXIe-4139

Issue Details

I don't understand the meaning of parameter slew rate of NI SMU when I read its user manual and specifications.

Solution

There is one example to explain the meaning of slew rate of NI SMU:

When capacitive load is connected to NI SMU, the slew rate is the maximum rate of change of the output voltage as a function of time. When driving a capacitor, the slew rate is limited to the output current limit divided by the total load capacitance, as expressed in the following equation:
(ΔV/Δt) = (I/C)
where ΔV is the change in the output voltage,
Δt is the change in time,
I is the current limit,
C is the total capacitance across the load.

Related Links

Other Support Options

Ask the NI Community

Collaborate with other users in our discussion forums



Request Support from an Engineer

A valid service agreement or active software subscription may be required, and support options vary by country.